- 5 -
Characteristics
- Serves for controlling of various types of appliances in
dependance on real time (automation-switching of
heating, pumps, ventilation etc.). Appliances can be
operated in concrete periodic time cycles or according
a pre-set program (depends on type, see the chart
Versions of time switches).
- SHT-1, SHT-3: 1-channel version.
- SHT-1/2, SHT-3/2: 2-channel version (to each channel
can be assigned an individual program).
- Possibility to control two independent circuits.
- By SHT-3, SHT-3/2 is not possible to integrate daily and
night mode on one channel. By SHT-3/2 is possible to
set a dierent mode on each channel.
- Setting of switching by:
- program (PROG) - switching according programs set
in SET 1 . Possibility to set the repeat every minute or
every hour.
- random (AUTO ) - random switching in 10-120 min interval.
- permanently manualy .
- Switching modes (OUT):
- OUT ON - normal - 2 positions in memory (close /open),
shortest time of closing is 1 min.
- OUT ON - cyclic - 2 positions in memory (pulse/delay),
range 1-99s.
- OUT ON - pulse - 1 position in memory, range 1-99s.
- OUT OFF - turn o the switching mode.
- Set time of pulse/delay is on one channel the same for
all programs (it is not possible to set more pulses with
dierent durations on one channel).
- “Holiday mode - “ - possibility to choose the period,
when the device will be not switching according a
standard program and will be blocked for the pre-set
time.
- 100 memory positions (by SHT-1/2 and SHT-3/2 are
those 100 positions common for both channels).
- Programming of device can be realize even under
voltage and also even in back-up mode.
- Output relays operates only under voltage.
- Automatic change-over between summer/winter time
(setting is for time zone GTM+1:00).
- Back-lighted LCD display.
- Easy and quick setting by 4 control buttons.
- Sealable transparent cover of the front panel.
- Time switch is back-up with in-built lithium element,
which saves data during voltage failure. Back-up time
reserve - up to 3 years.
- Supply voltage: AC 230V or AC/DC 12-240V.
- 2-Module, DIN rail mounting, saddle terminals.
- Device is delivered with pre-programmed actual time,
which is permanently displayed also in back-up mode.
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